Coin-controlled lock



Aug V T. LATCH COIN CONTROLLED LOCK Filed Augusi' 24, 6 Sheets-Sheet 1 INVENTQR Tfieodor-e Latch ATTORNEY Aug. 31 1926.

COIN CONTROLLED LOCK Filed August 2 1925 T. LATCH 6 Sheets-Sheet 2 INVENTOR v Tfie dore Latch 25 17 Maw;

ATTORNEY Aug. 31 1926.

T. LATCH COIN CONTROLLED LOCK 6 Sheets-Sheet 5 Filed August 24. 1925 HIHW INVENTOR Tfieodor-cLatc/ Q a-dug, ATTORNEY Aug. 31 1926.

T. LATCH COIN CONTROLLED LOCK Filed August 1925 6 Sheets-Sheet 4 m .M mm E a M WM. 3.8 w in T ATTORNEY Aug 31, 1926. 1,597,985

, v T. LATCH COIN CONTROLLED LOCK Filed August 24, 1925 6 Sheets-Sheet 5 INVENTOR T vcodorcLaZ h 27. (51 m6,

' ATTORNEY Aug. 31 1926.

Filed August 24 1925 n I 96 9 1 W", 27

6 Sheets-Sheet 6 a /Z\ 53 v as L M, U 2? dz I '21 7a 7 I L I I :1

INVENTOR Teodore Latch @d/ dm ATTORNEY Patented Aug. 31, i926.

TENT OFFICE.

crnnononn LATCH, or swim CENTER, IOWA.

com-CONTROLLED LOCK.

Application filed August 24, 1925. Serial No. 52,248. A

I The present application is a continuation in part of my application filed May 28, 1924, Serial Number 716,445, allowed March 6, 1925.

This'invention relates to.coin detecting means for vending or dispensing machines, and its primary object is to provide means for preventing the entrance of counterfeit, undersized or oversized coins, and in fact any token except the standard coin for which it is designed, from entering the dispensing machine.

A further object of this invention is to provide a coin detecting mechanism of the measurement is obtained by causing the coin to pass between fluted rollers whereby the measurement is made from the bottom of the milling on the periphery of the coin.

A further object of this invention is to provide a coin detecting mechanism of the class described in which-the coin, is caused to pass between a stationary and a lever mounted roller in such manner that a severe crushing strain is applied which will crush or break counterfeit or inferior coins and at the same time prevent their entrance to the dispensing machine.

A further object of this invention is to provide a coin detecting mechanism of the class described in which means is provided for attracting and diverting coins of magnetic properties and preventing their entrance to the machine.

A further object is to provide a mechanism of this character in which means is provided for returning to the operator any coin, either counterfeit or genuine, which J the mechanism may chance to reject, with the exception of magnetic coins, which are retained.

A further object of this invention is to provide a coin measuringspace consisting of a stationary member and a membermounted on a lever 1n such manner that the radius of a com passing between sald members is magnified at the long arm of the lever, which is employed to reslst passage of the coin through said space if said coin is not of proper size and material to be accepted.

A further object is to provide coin measur ing mechanism combining accuracy of measurement with arrangement wherebythe diameter of the coin is magnified at the long arm of a lever adapted to engage a large wearlng face on a stop block in case the coin is not accepted, thuspreventing failure of the rejecting means through wear of minute engaging parts. I

A further object is to provide a mechanism which is reliable and'sure to dispense the commodity when a coin of proper size pensing position until such time as the coin class described in which extremely accurate to crowd the latter into a tensional meas u1'- ing position relative to a coin, and thereafter the coin itself is employed as a cam to continue the action whereby the stop block and lever are caused to interengage and permit the dispensing devices to move to dispensing position.

Still a further object is to provide a mechanism of this class which is self clean-. ing, or in other words cannot be clogged or stopped by inferior coins or coins which arenot readily accepted by the mechanism.

Another object is to provide such a mechanism in which a coin cannot be accepted until the machine is in proper condition for dispensing or vending.

Still another object is to provide coin controlled locks for the vending machines adapted for operation by one or more difinvention consists in the construction, ar-

rangement and combination of elements hereinafter .set forth, pointed out in the claims and illustratedby the accompanying drawing, in which- Figure 1 is a front elevation illustrating my improved mechanism in position for practical use.

Figure 2 is a vertical section through the mechanism, on the line 22 of Figure 1..

Figure 3 is a rear elevation of the mechanism, taken interiorly'of the machine, a portion of which is shown in section.

Figure 4 is a sectional elevation of'the mechanism on the line 4.4 of Figure 2, and Figure 5 is a similar View on the line 5-5 of Figure 2.

Figure 6 is an enlarged detail view of a portion of the mechanism shown'in Figure 4, particularly the coin carriers, the notched stop blocks and the strain producing levers.

Figure 7 is -a horizontal section of the mechanism taken on the line 77 of Figure 3.

Figures 8, 9 and 10 are detail views of portions of the mechanism, particularly the coin carriers and notched stop blocks, with meansfor adjusting the same, Figure 8 be- .ing a rear elevation, Figure 9 a plan view,

and Figure 10. a front elevation of these members.

Figure 11 is a view, principally diagrammatic, illustrating how a coin passes through the space between fluted rollers and is meas ured thereby.

My coin control mechanism and coin detecting devices may be used in connection with any desired and suitable form of dispensing or vending machine, for instance for the dispensing of liquids such as gasoline; and it is here shown and described as adapted for the reception of two different stand ard coins, such as the silver dollar and half dollar, for delivering one or another amount or quantity of the liquid. It is to be understood that this arrangement may be varied, however, not only as to the kind of commodity dispensed but also the range of selection of quantity, and the size and character of coin to be used in its operation.

A portion of the frame of the dispensing machine is shown and designated by the character A, and such frame is formed with an opening to receive the main supporting plate 12 of my mechanism, which may be referred to as a door for the compartment of the machine to which said opening gives access.

In the present instance certain mechanism of the dispensing machine is adapted to'be operated, or its operation set in motion, by means of a shaft 13 which extends through the door 12 and has a crank handle 14: on its outer or forward end for manual operation; but it is to be understood that any other suitable means may be provided for this purpose, such for instance as a movable member of an electric switch or the like. In any event there is a connection between my coin cont-r01 locking means and the shaft 15 or similar member whereby such member cannot be operated until the detecting mechanism has been returned to neutral position.

The means for holding the door 12 in the frame A inpludes projecting lugs 15 on said door adapted to engage behind said frame at the margins of the opening therein, together with any desired means for preventing unauthorized removal of the door. I have here shown the door 12 formed with a chute 16 for one size of standard coin, such as the silver dollar, and also with a chute 17 for another size coin, such as the fifty cent piece.

-The chutes 16 and 17 lead downwardly and toward the median line of the door from opposite points near the upper corners thereof, and open at their lower ends to the rear face of said door. Suitable receiving means may be provided within the frame of the machine, or in. connection with the interior of the door, for the acceptable coins; and an outer receptacle 18 is also provided, acces- 20 is supported centrally of the rear of the door 12 adjacent and between the inner ends of the chutes 16 and 17, and is adapted to attract and temporarily retain any magnetic coins which may be inserted in the chutes and prevent them from passing to the dispensing machine or effect its operation.

A spindle 21 is journaled for rotary oscil-. lation in the door 12 and plate 19, projects forwardly of said door and has a double handle 22 attached to its forward end, by means of which it may be manually rocked in either direction. A substantially vertical lever 23 is fixed to the spindle 21 just rearwardly of the door 12, and its upper end is provided with a forwardly projecting pin 24 extending within and adapted for travel in an arcuate groove 25 formed in the rear face of the door. The upper end portion of any magnetic coin which may be clinging to said magnet. Pointed lugs 26 and 27 are formed on or fixed to t e rear face of the door, near the inner ends of the respective chutes, with their points arranged inwardthe magnet, so that they will not attempt to enter the coin carriers or otherwise impede the detecting mechanism. When magnetic coins are so attracted, released and deflected rearwardly, they fall into a portion of the machine to the rear of the door. and are there retained.

The outer receptacle 18 is formed with a ,portion which is located partly inside or to the rear of the door 12, which door is formed with an opening or openings 28 furnishing communication between such interior portion and the outer portion of the receptacle;

and such inner portion includes a rear wall 29 extending upwardly past said opening 28, parallel with and spaced rearwardly from the door, and side walls 30, 31 connecting said rear wall with the door, said receptacle being open at its top both inside and outside the door. The uipwardly projecting lever 23 is located against the rear face of the door and partly between said door and the rear wall 29 of the receptacle. A detent lever 32 is fixed to the spindle 21 immediately behind the rear wall 29, as by a pin 33, said detent extending downwardly to- .ward and intersecting the operating shaft 13. The detent 32 is wide at its lower end, which is formed on a convex arc and has a notch 34in its-center to receive the shaft 13. The shaft in turn is formed with an upwardly opening notch 35 which is flat and plane at its b0ttom,'to receive the detent 32 at times. It is apparent that because of this interlocking arrangement,-the shaft 13 cannot be operated unless the detent 32 is in its normal central position as shown, with its notch axially of the shaft; and that the detent, and members connected therewith, can only be oscillated when the shaft is in the position shown, with its notch 35 opening directly upwardly, which is the normal position said shaft will take, with the handle 14' depending downwardly as induced by gravity. A stem 36 is formed on and projects upwardly from the hub of the detent 32 and is formed on its lateral sides with concaved seats engaged by the inner ends of opposed spring-pressed plungers 37 and 38 carried by brackets 39 and 40 respectively, which are adjustably mounted on the rear face of the plate 19 by means of screws 41 and extending thro ugh slots 42 in said brackets and seated in said plate. The plungers 37 and 38 are arranged for reeiprocation in apertured ears 43 projecting rearwardly from the brackets, and are urged inwardly into engagement with the stem 36 by means of springs 44 and 45 coiled on said plungers and engaging one of the ears on the bracket and a pin 46 extending through the plunger. It is the function of the spring-pressed plungers 37 and 38 to hold the detent 32, and parts connected therewith, in. neutral position as shown, and to tend to return them to such position when moved therefrom.

' Plates 47 and 48 are-arranged transversely, one above the other, and spaced some- What to the rear of the door 12, to which they are secured by screws 49 and 50. A carrier bar 51 is arranged for transverse reciprocation against the rear face of thedoor 12 and between adjacent margins of the plates 47 and 48, and said bar is formed with rearwardly projecting lugs 52 and 53 at its ends. Formed on the forward side of the carrier bar 51 and adjacent its respective ends are coin carriers 54 and 55, each including a. vertical slot extending therethrough on a. curve as shownin Figures 5 and 10. The coin carriers 54 and 55 are adapted to receive coins from the chutes 16.and 17 respectively and carry them laterally for engagement with measuring and testing rollers to be described. Locking blocks 56 and 57 are mounted on the rear face of the carrier bar 51 and each is held in place by a sing e capscrew 58. The locking blocks 56 and 57 are formed on their inner faces 'with a recess 59 of substantially rectangular form, opening to their inner faces. Mounted on the rear faces of the plates 47 and 48 respectively, and pivoted thereto at their outer ends by screws 60, are measurin levers 61 and 62, which are movable in a plane parallel with said plates. The levers Gland 62 are forked at their inner ends, one arm 63 of each fork being longer than the other and being directed toward and adapted to enter and fit closely in a recess 59 of a cam stop'block 57 or 56 respectively. The levers 61 and 62 are oppositely arranged'as shown, the short arms of the forks thereof are offset rearwardly and are connected by a tension spring 64. I

A measuring and testing roller is mounted in 'fixed. position on eachslde of the center of the device, the roller 65 being carried between the door 12 and one end portion of the plate 48, while the other stantial vertical alinement with the roller- The rollers 67 and 68 are 66 but below it. arranged betweenthe door 12 and the p ates 47 and 48respectively, and are journaled on pins 69 carried by the respective levers and movable in slots 70 formed in said plates, which are behind the levers. The rollers 65,

66, 67 and 68 are knurled or fluted on parallel lines to form' peripheral teeth as clearly shown in Figure 11, and it is their function to very accurately measure and test any .coins which pass or attempt to pass between them in the carriers 54, 55.

The operation of this part of the mechanism is as follows: A coin is inserted in one of the chutes, such as 17 and falls by gravity along the rear face of the'door 12, between the lever 23 and the uppermost measuring' roller on that side of the device namely 66; it being presumed that all the parts are in their neutral or centralized position; said coin entering the-carrier 55 and bein prevented from passing therethrough by t e lower roller 68, it being noted that the slot in the carrier curves outwardly. The'operator then exerts pressure manually on one side of the double handle 22, to rock it toward that side of the 'device in which the coin has been inserted, thus oscillating the spindle 21 and'lever 23, as well as the detent 32. The lever 23 is formed between its ends with a lateral enlargement 71 or double cam located between and in the same plane as the coin carriers 54 and 55, and when the lever is oscillated this cam portion exertspressure laterally on one or the other of said carriers and tends to causet'he bar51 to move in its guides and carry with it the stop blocks 56 and 57. The coin, such as 72, which has been inserted as above described, is carried laterally by the carrier 55 and attempts to pass between the rollers 66 and 68. It will be noted that this lateral movement also causes the stop block 56 to approach the forked end of the measuring lever 62, and before the coin can pass between the rollers, the long arm 63 of the fork engages-said sto block.- The long arms 63 of the forked evers are formed on theiropposed faces with cams 7 3 adapted to be engaged by cams 7 3 formed on the stop blocks 56, 57 in their travel, such engagement causing the forked end of the lever 61 to be oscillated upwardly or the forked end of the lever 62 to be oscillated downwardly as the case may be. It will be appreciated that on account of the fact that the forked ends of the levers 61 and 62 are connected by the spring 64, movement of the. one will be communicated to the other, or if resisted greater tension will be placed in the spring. The arrangement and spacing of the roll cm 6567 and 66-68, and also the adjustment of the stop blocks 56, 57, is such that when the proper coin ,for which either set of rollers is designed is'carried toward such set of rollers, it will be measured thereby and passed between them. The measurement is accomplished from the bottom of the peripheral milling on the coin, by the teeth produced by the fiuting on the rollers, and 1s thus very accurate regardless of the amount of superficial wear to which the coin may have been subjected theretofore. When the proper coin is thus passed between the rollers it applies just enough pressure on the lever-carried roller, such as 67 'or 68, to deflect the lever enough from the movement generated b the other lever through engagement o the stop block w1th its cam 73,

v before described.

ermost roller, such as 68.

that the fork of said lever be in alinement with the recess 59 of the stop block which is being moved toward it. y This permits the long arm 63 of the lever to enter -movement of the carrier bar as previously described carries the coin 72 to a position between the rollers 66 and 68 as shown in Figure 5, and assuming that such coin is the standard coin for which that side of the 'machine is designed, it is permitted to pass between them, by a rolling contact with said rollers and the accurate measuring herein Before the coin has reached the measuring point,.however, the cam stop block 56 has engaged the cam 73 of the lever 61 and raised it, thus pulling u on the inner end of the lever 62 throug the spring 64. As the movement continues,-

the entrance of the coin to the space between the rollers 66 and 68 counteracts this upward pull to some extent, placing the lever under tension of the sprin the parts are properly ad usted the long 64, and when arm of the lever 62 is placed in exact alinement with the recess 59 of the advancing stop block 56, and the movement thereof is not checked. This omits the carrier bar 51 to be advanced 1ts complete amount of travel through continued pressure on the handle 22, the coin is passed between the rollers and permitted to drop to the place provided for acceptable coins.

In the event the coin inserted is not the A similar result occurs in proper denomination, or is a counterfeit, it will not pass between the rollers, for one of' the movement cannot continue to the end of travel, and when the member 23 is returned to normal or-neutral position, the coin willv be carried back to its original position when inserted and will be supported by the low- The operator upon observing that the machine is stopped will naturally oscillate or jerk the handle 22 and cause the member 23 to be moved to the left ofits neutral'position as viewed in' Figures 5 and 6; and when any reverse pressure is applied an extractor lug 74: at

' the outer end of the carrier,'in this instance 55, exerts back pressure against the coin therein, causing it to fall on the inner side of the roller 68 and into the receptacle 18, whence it may be reclaimed by the depositor.

Any suitable means may be provided for effecting the dispensing or vending byand through the complete travelof the carrier and parts connected therewith upon passage of an acceptable coin. In this instance I have shown a cross-head fixed to the rear end of the spindle 21, and links 76, 77, or other suitable connecting means, may be attached to the opposite ends of said crosshead and extend to the desired location for connection and operation of the dispensing devices. In theevent the commodity to be dispensed is a liquid such as gasoline, the links 76, 77 may be attached to sultable valves by which the liquid is dispensed, the

links and valves being operated only when the crosshead is oscillated to lts extreme po sition in either direction by complete movement of the double handle 22 and spindle after acceptance of a coin.

I have also shown a rod 78 arranged transversely of the rear portion of the plate 19 and held in place in cars 79 and 80 formed thereon. .An arm 81 is fixed to the'spindle, extends upwardly and has its upper en forked and engaging the rod 78 freely. Ten-' sion springs 82 and 83 are coiled on the rod 78 on opposite sides. of the forked arm, engaging at their outer ends the ears 79 and 80 and at their inner ends stops 8% on said pin. It is the function of the sprmgs 82 and 83 to tend to centralize the spindle 21 and members connected with it, and to return them to central or neutral position after they have been moved therefrom. These springs may be used to supplement the spring-pressed plungers 37 and 38, or

they may be used in lieu thereof.

Extending across the forward face of the door 12 and. journaled for oscillation in bearings 85 and 86 carried thereby, is a neutralizing shaft 87 having a crank 88 at one end, which may be formed with an eye 89 on its end. A projection 90 is formed on and extends upwardly from the central part of the double handle 22. A latch 91 is pivoted at its lower end on the lower portion of the projection 90 and on its rear face, by means of a pin or bolt 92. The latch is arranged for sliding engagement'with a segment 93 formed on the face of the door 12 and is pressed intoengagement therewith by a spring 94 mounted in a recess 95 in the upper end of the projection 90. The segment 93 is formed with notches 96 and. 97 near its ends, into which the latch 91 is pressed by the spring 95 when the spindle 21 hasbeen movedto the end of its throw upon passage-of an acceptable coin; and this latching arrangement is provlded in order to hold the cross-head 75, connecting members 76 and 77 and-dispensing devices in open position until the dispensing operation has been completed. After such completion the parts are returned to neutral position by manual pressure on the crank 88 of the neutralizing shaft 87, or in any other suitable manner. The oscillation of the shaft 87 causes a downwardly extending arm 98 thereon to displace the latch 91 from either of the notches 96 or 97, whereupon the springs 82 and 83, plungers 37 and 38, or other suitable means, act to return the parts to central or neutral position.

In the present embodiment of this invention, which is particularly adapted for controlling the dispensing of liquid such as gasoline, the crank 14 and shaft 13 may be employed for raising the liquid from a storage tank to a dispensing tank located at the upper end of a pump standard in the common way. After the liquid is so raised into position for dispensing, the coin is inserted and the .machine operated as previously described, and then returned to neutral position by tripping the shaft 87, or in any desired manner; in this instance the eye 89 of the crank on shaft 87 may be-employed. to receive a hook on the gasoline hose (not shown), so that When the hose is replaced its weight will automatically trip the devices for neutralizing or centralizing the spindle 21. Any suitable means may be provided for preventing insertion of a coin to the detecting mechanism prior ,to the operation of lifting the liquid to dispensing position, such means forming no partof the present invention.

It is desirable to provide means for adusting the positions of the stop blocks 56 and 57, or rather their inclination and that of the recesses 59. For this purpose I show ad usting screws 99 and 100, one on each side of the axis of each block, which'screws are threaded through the ears 52 and 53 and engage the outer ends of the stop blocks.

For adjustment of the blocks the cap screws 58 are first loosened, one or the other of the set screws.99, 100' loosened and the other correspondingly tightened, and when the de-' sired inclination is obtained to ermit entrance of the forked -levers to the recesses of the blocks, the cap "screws 58 are again tightened.

' The pin 24 on upper end of lever 23 is employed to block the exit to a chute 16 or- 17 and prevent a coin falling therefrom when the-lever has been oscillated to that side of the machine for dispensing purposes; and if a coin is inserted in the opposite chute at such a time it .will fall into the machine but there being no coin carrier in position to receive it, the coin will fall into the receptacle 18 and be accessible to the deposito the accuracy of measurement by the fluted rollers and the interengagement of measuring levers with recessed stop blocks; and also the crushing strain which is appliedfor detecting inferior coins such as those of lead, or bakelite chips, this strain being aplied through the lever advantage obtained by having the lever-mounted rollers carried near thefulcrums of the levers, and the long arms extended therefrom for engagement with the stop blocks, which strain is not dependent upon the spring tension. All these features make my mechanism thoroughly practicable and adapt it for a great variety of uses in connection with ispensing and vending machines of different types. The lever advantage of the lever' mounted measuring roller is also employed, by magnifying the diameter of the com being measured, to provide that a large.

wearing surface on the cam stop. block is engageable by the long arm of the lever, so that while extreme accuracy of measurement is provided, yet the mechanism is not dependent upon minute or very precise engaging members to stop the action when an improper coin is inserted, which might otherwise, because of wear on such parts, cause a failure of the rejecting mechanism. In other words this arrangement provides that a wide face of the stop block is engaged by the end of the lever when the coin' is rejected.

It should be noted further that in the cam action of the stop block and lever as described,.the lever is first engaged by the cam sto block to crowd the lever into a tensiona measuring position insuring accuracy of measurement of the coin; and that thereafter when it has been determined that the coin may pass the measuring space, the coin itself is employed as a cam to'continue the movement of the lever toward the recess of the stop block so that the dispensin operation may be fulfilled. D

there can be no interference with a comple-' tion of the dispensing operation, until such time as such operation is completed and the parts neutrahzed or returned to central position by the means described, or any other suitable means provided for that purpose.

I have shown all the coin detecting mechanism carried by the door and having convenient connections with the dispensing means, which makes my device unitary and easy to assemble and install.

I claim as my invention- 1. A coin detector of the class described comprising a coin carrier, a notched member thereon, means for actuating the carrier, a pivoted arm, a fluted roller thereon for engaging the coin carried by the carrier, a second fluted roller forming with the first roller a coin receiving space through which a coin is adapted to be passed by the carrier, said arm having a part for engaging the notch in the member when a proper sized coinis passed between the rollers, and spring means for holding the arm in its extreme position. I

2. A coin detector of the class described comprising a supporting member having a coin chute therein, a coin carrier slidably mounted in the member for receiving the coins passing through the chute, a notched block on the carrier, a pivoted arm, a fluted .roller thereon for engaging a'coin, said arm having a part for entering the notch in the block when a proper sized coin is placed in the chute, a spring for holding the arm in a position where it will not enter the notch,

a hand operated member, a lever connected therewith and connected with the carrier for reciprocating the same, operating means actuated by the hand member, and spring means for holding'the parts in neutral position.

3. A coin detector of theclass described comprising a supporting member having a coin chute therein,,a coin carrier slidably mounted in the support for receiving the coins passing through the chute, a notched block on the carrier, a pivoted arm acting with the carrier, a fluted roller thereon for engaging a coin, said arm having a part for entering the notch in the block when a proper sized coin isplaced in the chute, a spring for holding the arm in its inoperative position, a hand operated member, a lever connected therewith and adapted to engage the carrier for reciprocating the same, -an operating member actuated by the hand operated member, spring means for holding the parts in neutral position, and a magnet adjacent the chute for holding magnetic coins, said lever adapted to knock the coins from said magnet when oscillated.

4. A coin detector of the class described comprising a coin carrier, a notched memberthere'on, means for actuating the carrier,

a pivoted arm, a fluted roller thereon for engaging the coin carried by the carrier, a second fluted roller storming with the first roller a coin receiving and measuring space through which a coin is adapted to pass with the carrier, said arm having a part for engaging the notch in the member when a proper sized coin is passed between the rollers, the flutings on said rollers operating to measure a coin from the bottom of the peripheral milling thereon whereby extreme accuracy is assured.

5. A coin detector of the class described comprising a coin carrier, a notched member thereon, means for actuating the carrier, an arm pivoted at one end and having means at its other end for engaging the notch in the member when a proper sized coin is received, a fluted roller carried by said arm near its pivot for engaging a coin carried by the carrier, a second fluted rol'lermounted in stationary position and forming with the first roller a coin receiving and measuring space through which a coin is adapted to be passed in said carrier, the longer portion of said arm employed for entering said notched block being designed to magnify differences of spacing between the stationary roller and the roller mounted on the short portion of said arm.

6. A coin detector of the class described comprising a coin carrier, a notched member thereon, means for actuating the carrier, a pivoted'arm, a fluted roller thereon for engaging the coin carried by the carrier, a second fluted roller forming with the first roller a coin receiving space through which a coin is adapted to be passed by the carrier, said arm having a part for engaging the notch in the member when a proper sized coin is passed between the rollers, said arm being formed with a cam portion adapted for engagement by a cam portion of the coin carrier in its travel to oscillate said arm toward the notch in said member.

7. A coin detector of the class described comprising a coin carrier, a notched cam member thereon, means for actuating the carrier, a pivoted arm, a flutedroller there on for engaging a coin carried by the carrier, a second fluted roller forming with the first roller a coin receiving space through which a coin is adapted to be passed by the carrier, said arm hFViIiga part for engaging the notch in the cam member when aproper sized coin is passed between the relers, and meansfor adjusting the inclination of said cam member and its notch. for engagement by said arm.

8. A coin detector of the class described comprising a coin carrier, a notched member thereo means for actuating the carrier, a pivoted arm, a roller on said arm for engaging the coin carried by the carrier, :1 second roller forming with the first roller a coin receiving space within which a coin must exactly fit before it can be passed by the carrier, said arm having a part for engaging the notch in the member only when a proper sized coin is passed between the rollers, and said partadapted to engageand stop the carrier unless a proper sized coin is carried therein, and means for returning an unacceptable coin to the depositor when it fails to pass through said coin receiving space.

9. A coin detector of the class comprising a coin carrier, a notched member thereon, means for actuating the carrier, a member adapted to be moved to dispensing position, a pivoted arm, a roller carried by the arm for engaging a coin carried by the carrier, a second roller forming with the first roller a coin-receiving space through which a coin is adapted to be passed by the carrier, said arm having a part for engaging a notch in the notched member when a proper sized coin is passed between the rollers, such engagement operating to prevent movement of the movable member to dispensing position. together with means for locking said member in dispensing position when it has arrived, manually operated means for releasing said locking means, and spring means for returning the carrier'and parts connected therewith to neutral position.

10. A coin detector of the class described comprising a supporting member having a coin chute therein, a coin carrier slidably mounted in the member for receiving coins passing through the chute, a notched cam stop block on the carrier, a pivoted arm, a

roller on said arm for engaging a coin," said arm having a part for entering the notch in the stop block when a proper sized coin is placed in the-chute, a spring for holding the arm in a position where it will not enter the notch, a hand operated member, a lever connected therewith and adapted to engage the carrier for reciprocating the same, operating means actuated by the hand member, and spring means for holding the parts in neutral position.

.11. A coin detector of the class described comprising a coin carrier, a cam stop block formed with a recess mounted on the carrier, means for actuating the carrier,,an arm pivoted at one end and having means at its other end for engaging the recess in the stop block when a propersized coin is received, a roller carried by said arm near'its pivot for engaging a coin carried by the carrier, a second roller mounted in stationary position and forming with the first roller a coin receiving and measuring space through which a coin is adapted to be passed in the carrier, the longer portion of said arm employed to magnify the diameter of a coin in the measuring space to produce accuracy in measurement and also to provide a large wear resisting space for engagement on said stop block when a coin is rejected.

'12. A coin detector of the'classdescribed comprising a coin carrier, a stop block thereon formed with a recess, a means for actuating the carrier, a pivoted arm, a roller thereon for engaging a coin carried by the carrier,

a second roller forming with the first roller a coin receiving space through which a coin is adapted to be passed by the carrier, said arm having a part for engaging the recess in the stop block when a proper sized coin is passed between the rollers,- said arm being formed with a cam portion adapted for engagement of a cam portion of the stop block or crowding the arm in a tensional measuring position. t

13. A coin detector of the class described comprising a coin carrier, spacedstop blocks thereon each formed with arecess, means for actuating the carrier, a pair of pivoted arms,

a spring adapted to connect said arms and hold them under tension, a roller pivoted on each arm and adapted for engagement with a coin carried by the carrier when moving in one direct-ion, a second roller adapted to form with each of the first rollers a coin receiving space, each arm having a part for engaging arecess in one of the stop blocks when a proper sized coin is passed between the corresponding pair of rollers, each arm being formed with a cam portion adapted for engagement by a cam portion of the opposite stop block for crowding the arm to a tensional measuring position, the coin in the carrier when passin between the rollers being adapted to contmue the cam action and movement of the arm to such position that it may engage the recess of the appropriate stop block.

14. A coin detector of the class described comprising a coin carrier, a supporting member having a coin chute, a notched member on the carrier, means for actuating the carrier, a pivoted arm, a roller on said arm for engaging a coin carried bythe carrier, a second roller forming with the first roller a coin receiving space within which a coin must fit before it can be passed by the carrier, said arm having a part for engagement with the notch in the member only when a proper sized coin is passed between the rollers, and said part, adapted to engage and stop the carrier unless a proper sized coin is carried therein, said supporting member being formed with a receptacle ada ted to receive a coin which is rejecte by said measuring devices, said receptacle openin to the outside of the supporting member so t at the coin may be regained by the person depositing it.

15. A coin detector of the class described comprising a coin carrier, a stop member thereon, means for actuating the carrier, a

pivoted arm, a fluted roller carried by Said arm for engaging a coin carried by the carrier, a second fluted roller forming with the first roller a coin receivin space throu h which a coinis adapted to ae passed by t e carrier, said stop member and pivoted arm havin interengaging parts to permit a continue movement of the carrier when a proper sized coin is passed between the rollers, and spring means for holding the arm in its extreme position.

16. A coin detector of the class described comprising a coin carrier, a stop member thereon, means for actuating the carrier, a pivoted arm, a fluted roller carried by the arm for engaging a coin carried bythe carrier, a second fluted roller forming with the 'first roller a coin receiving space throu h THEODORE LATCH. 

